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参数资料
| 型号： | MAX1771CSA |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 2/16页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR BST PWM 8-SOIC |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 100 |
| PWM 型： | 控制器 |
| 输出数： | 1 |
| 频率 - 最大： | 500kHz |
| 占空比： | 92% |
| 电源电压： | 3 V ~ 16.5 V |
| 降压： | 无 |
| 升压： | 是 |
| 回扫： | 无 |
| 反相： | 无 |
| 倍增器： | 无 |
| 除法器： | 无 |
| Cuk： | 无 |
| 隔离： | 无 |
| 工作温度： | 0°C ~ 70°C |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 包装： | 管件 |
MAX1771
12V or Adjustable, High-Efficiency,
Low I Q , Step-Up DC-DC Controller
ABSOLUTE MAXIMUM RATINGS
Supply Voltage
V+ to GND ...............................................................-0.3V, 17V
EXT, CS, REF, SHDN, FB to GND ...................-0.3V, (V+ + 0.3V)
GND to AGND.............................................................0.1V, -0.1V
Continuous Power Dissipation (T A = +70°C)
Plastic DIP (derate 9.09mW/°C above +70°C) ............727mW
SO (derate 5.88mW/°C above +70°C) .........................471mW
CERDIP (derate 8.00mW/°C above +70°C) .................640mW
Operating Temperature Ranges
MAX1771C_ A .....................................................0°C to +70°C
MAX1771E_ A ..................................................-40°C to +85°C
MAX1771MJA ................................................-55°C to +125°C
Junction Temperatures
MAX1771C_ A/E_ A.......................................................+150°C
MAX1771MJA ..............................................................+175°C
Storage Temperature Range .............................-65°C to +160°C
Lead Temperature (soldering, 10sec) .............................+300°C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(V+ = 5V, I LOAD = 0mA, T A = T MIN to T MAX , unless otherwise noted. Typical values are at T A = +25°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
MAX1771 (internal feedback resistors)
2.0
12.5
Input Voltage Range
Minimum Start-Up Voltage
MAX1771C/E (external resistors)
MAX1771MJA (external resistors)
3.0
3.1
1.8
16.5
16.5
2.0
V
V
Supply Current
Standby Current
V+ = 16.5V, SHDN = 0V (normal operation)
V+ = 10V, SHDN ≥ 1.6V (shutdown)
V+ = 16.5V, SHDN ≥ 1.6V (shutdown)
85
2
4
110
5
μA
μA
Output Voltage (Note 1)
Output Voltage Line Regulation
(Note 2)
Output Voltage Load Regulation
(Note 2)
Maximum Switch On-Time
Minimum Switch Off-Time
Efficiency
t ON (max)
t OFF (min)
V+ = 2V to 12V, over full load range,
Circuit of Figure 2a
V+ = 5V to 7V, V OUT = 12V
I LOAD = 700mA, Circuit of Figure 2a
V+ = 6V, V OUT = 12V, I LOAD = 0mA to
500mA, Circuit of Figure 2a
V+ = 5V, V OUT = 12V, I LOAD = 500mA,
Circuit of Figure 2a
MAX1771C
11.52
12
1.8
1.4700
12.0
5
20
16
2.3
92
1.5
12.48
20
2.8
1.5300
V
mV/V
mV/A
μs
μs
%
Reference Voltage
V REF
I REF = 0 μ A
MAX1771E
1.4625
1.5
1.5375
V
MAX1771M
1.4550
1.5
1.5450
REF Load Regulation
REF Line Regulation
0μA ≤ I REF ≤ 100μA
3V ≤ V+ ≤ 16.5V
MAX1771C
MAX1771C/E
MAX1771M
1.4700
4
4
40
1.5
10
15
100
1.5300
mV
μV/V
FB Trip Point Voltage
V FB
MAX1771E
1.4625
1.5
1.5375
V
2
MAX1771M
1.4550
1.5
1.5450
Maxim Integrated
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